Walmart offers the Apple iPad Air 16GB WiFi + 4G Tablet for AT&T in Silver, model no. ME997LL/A, for $319 with free shipping. That's the lowest total price we could find by $71, although we saw it for a different carrier for $19 less two weeks ago.

Walmart also offers the 32GB version, model no. MF529LL/A, for $449.99 with free shipping. That's the best deal we could find by $65.